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EP0610483A1 - Device for enriching water with co 2? gas in order to generate carbonated water. - Google Patents

Device for enriching water with co 2? gas in order to generate carbonated water.

Info

Publication number
EP0610483A1
EP0610483A1 EP93919164A EP93919164A EP0610483A1 EP 0610483 A1 EP0610483 A1 EP 0610483A1 EP 93919164 A EP93919164 A EP 93919164A EP 93919164 A EP93919164 A EP 93919164A EP 0610483 A1 EP0610483 A1 EP 0610483A1
Authority
EP
European Patent Office
Prior art keywords
water
storage container
gas
ice
circulation pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93919164A
Other languages
German (de)
French (fr)
Other versions
EP0610483B1 (en
Inventor
Robert Notar
Udo Schwander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Coca Cola Co
Original Assignee
Bosch Siemens Hausgerate GmbH
Coca Cola Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Siemens Hausgerate GmbH, Coca Cola Co filed Critical Bosch Siemens Hausgerate GmbH
Publication of EP0610483A1 publication Critical patent/EP0610483A1/en
Application granted granted Critical
Publication of EP0610483B1 publication Critical patent/EP0610483B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/236Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
    • B01F23/2362Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages for aerating or carbonating within receptacles or tanks, e.g. distribution machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20Measuring; Control or regulation
    • B01F35/21Measuring
    • B01F35/212Measuring of the driving system data, e.g. torque, speed or power data
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D1/0042Details of specific parts of the dispensers
    • B67D1/0057Carbonators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00Apparatus or devices for dispensing beverages on draught
    • B67D1/08Details
    • B67D1/0857Cooling arrangements
    • B67D1/0858Cooling arrangements using compression systems
    • B67D1/0861Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F2035/98Cooling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00Gas and liquid contact apparatus
    • Y10S261/07Carbonators

Definitions

  • the present invention relates to a device for enriching water with CO gas for producing carbonized water in a storage container, which is cooled with cooling lines of a cooling circuit in the reservoir for cooling its content and for forming an ice jacket in the wall area
  • a circulating pump is arranged inside, through which CO gas from the head region of the pre-
  • CO gas can be supplied in the head area and from the carbonized
  • CO-containing soft drinks by mixing carbonated
  • prepared water can be prepared and dispensed with an appropriate beverage concentrate.
  • the beverage con Soda water to be admixed is fed into the storage container by enriching it with water
  • CO gas supplied namely from a CO gas storage container
  • cooling the carbonator serves on the one hand to improve the carbonation and on the other hand as a prerequisite that the final prepared and dispensed beverage has the desired low and essentially constant temperature.
  • the carbonator is expediently cooled by means of a cooling system which is able to build up an ice jacket in the side region of the side walls of the carbonator, which ice jacket is formed to a certain extent by the circulated water.
  • "cold capacity" is stored and the cooling system need not be designed to be extremely powerful, as is necessary in the case of flow cooling. would be agile. Arrangements with a corresponding structure are known (DE-A-40 25 986.2).
  • a shut-off valve is opened in a line connected to the bottom area of the carbonator and the cooled, carbonated water is removed for this purpose. Since the water is cooled in the area of the cooling coils in the vicinity of the freezing point with regard to the ice coat being formed, there is a certain risk that ice particles or parts will get into the area of the outflow opening and block it . Ice formation in this area itself is rather impossible, since because of the special behavior of the water with regard to its specific density in the vicinity of the freezing point, the somewhat warmer water would sink downward, and since the outlet opening is expediently in the vicinity of the an Circulating pump radiating some heat is arranged.
  • the ice Due to the circulating movement of the water, which is necessary or at least useful for the carbonization and for the uniform formation of the ice jacket on the walls, however, the ice can become detached or floating or floating ice in the upper areas with a particularly open discharge channel in reach its area.
  • a device that meets these requirements is characterized in that the circulation pump within the Storage container, which is used to produce carbonized water by enriching water with CO gas
  • a device with measures according to these features according to the invention is characterized in that the sufficient carbonation of the water with CO gas is accomplished and / or supported in the operating phases of the circulating pump
  • the carbonized water can stratify according to its natural density, whereby the somewhat warmer water sinks down and the somewhat colder water together with any ice particles that may be present or ice particles rise to the top, the ice particles and ice particles tending to come together and lie against the ice jacket in the upper region of the carbonator.
  • the clocking of the circulating pump can be carried out by a timing control circuit that functions simply in terms of control technology.
  • the device according to the invention is characterized in that the on-time of the circulation pump is approximately 1 to 2 minutes and the ratio of the on-time to the off-time is approximately 1:10 to 1:20. It turns out that an on-time of one to two minutes within on-off cycles from 1:10 to 1:20 is sufficient re-carbonation of the water and is able to achieve a sufficiently uniform ice jacket design.
  • the device according to the invention is characterized in that when carbonized water is removed from the storage container or when fresh water is supplied to the storage container, the circulation pump is put into operation during this phase including a follow-up phase. A follow-up phase of approximately 2 to 4 minutes is expedient. Then the control cycle starts again, in which the circulation pump is switched on for 1 to 2 minutes and the switch-off time between the switch-on phases is 10 to 20 times as long.
  • Fig. 1 shows a cooled storage container for the preparation and for the preparation of carbonated water with a circulation pump and
  • FIG. 2 shows a similar storage container, but additionally with cooling coils inside this storage container and on this storage container for cooling another medium.
  • a storage container 1 is suitable and intended for use in devices for the preparation of soft drinks by admixing an appropriate concentrate to carbonated water or possibly also to normal water. Via a feed line 2, the storage container is required
  • Fresh water and 3 CO gas supplied via a feed line Fresh water and 3 CO gas supplied via a feed line.
  • a sufficient amount of carbonated and cooled water is taken in portions via an outlet line 4 to prepare a refreshing drink.
  • the sufficient Karbonisie ⁇ tion is at least supported by a circulation pump 5, which sucks the CO gas located there from the head region 6 of the storage container 1 via an intake pipe 7 and mixes it into the stored water 8 at the level of the circulation pump 5. This CO gas is largely in the water
  • the circulation pump 5 is driven by an electric motor 9.
  • the cooling of the water supply takes place via evaporator coils 10 of a cooling system, not shown, in such a way that an ice jacket 11 builds up in the interior of the storage container 1 in the area of the evaporator coils 10, which rest on the wall of the storage container 1 with good thermal conductivity .
  • the thickness of this ice jacket 11 is monitored by an ice sensor 12, from which the refrigeration cycle and thus the cooling capacity is controlled.
  • this ice jacket 11 has the effect that the reservoir of water 8 is cooled to a very constant temperature in the immediate area of the freezing point without very sensitive detection and evaluation measures, and the temperature is essentially maintained when water changes take place , ie when carbonized water is withdrawn via the outlet line 4 and - controlled by a water level sensor 13 - warmer water is supplied via the inlet line 3.
  • the ice jacket degrades relatively quickly around sub-areas, which then be built up again by cooling power supplied via the evaporator lines 10.
  • a known measure consists in preventing icing of the outlet opening by arranging it in the vicinity and / or below the circulating pump, the heating, in particular of the drive motor 9, having a positive effect against icing.
  • this measure may not be sufficient against floating ice particles.
  • the electric motor 9 is driven intermittently.
  • An operating phase of approx. 1 to 2 minutes is followed by a rest phase of approx. 10 to 20 times the length.
  • the circulated water 8 calms down and ice particles and ice particles floating in this water, because of their lower density, endeavor to reach the area of the surface of the water in order to unite there and / or in the edge areas. are enough to put on the ice jacket 10.
  • these hazard elements are thus neutralized.
  • the circuitry measures are arbitrarily simple and can be implemented, for example, in that a signal is derived from the water level sensor 13, which sets a counting chain into an initial situation during a water inflow, which causes the power supply switch 15 to the electric motor 9 to be closed . If the water level sensor 13 detects that enough water has been refilled, the water supply via the feed line 2 is blocked and the counting chain 14 begins to run off. For a time range of 1 to 2 minutes, depending on the design of the counting chain, the switch 15 remains closed, in order to be opened thereafter until the counting chain has reached the upper setting value, after which it can be switched back to the initial situation and run through again .
  • Fig. 2 shows a modification of a Vorratsbehalters according to Fig. 1, wherein the reservoir l l only in the upper wall region with evaporator coils 10 'acted is so that the ice sheet is also preferably formed in the upper region of the storage container 1 '.
  • the circulation pump 5 'and its drive motor 9' there are coils 16 through which other water to be cooled is passed through the carbonized water. Due to the resting phases of the circulation pump, the slightly warmer water 8 'due to its greater density collects in the lower zones of the storage container 1', so that a risk of icing in the coils 16 is also prevented.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne un dispositif pour enrichir de l'eau en gaz carbonique afin de produire de l'eau gazéifiée dans un réservoir, notamment dans un gazéificateur qui est pourvu de conduites de refroidissement d'un circuit de refroidissement, destinées à refroidir son contenu et à former une enveloppe de glace dans la zone de ses parois. La pompe de circulation est mise en marche et arrêtée par un circuit de synchronisation.The invention relates to a device for enriching water with carbon dioxide in order to produce carbonated water in a tank, in particular in a gasifier which is provided with cooling pipes for a cooling circuit, intended to cool its contents. and to form an envelope of ice in the area of its walls. The circulation pump is started and stopped by a synchronization circuit.

Description

Vorrichtung zum Anreichern von Wasser mit CO -Gas zur Erzeu- gung von karbonisiertem WasserDevice for enriching water with CO gas to produce carbonated water

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zum Anreichern von Wasser mit CO -Gas zur Erzeugung von kar¬ bonisiertem Wasser in einem Vorratsbehälter, welcher zur Kühlung seines Inhalts und zur Bildung eines Eismantels im Wandungsbereich mit Kühlleitungen eines Kühlkreislaufs be¬ aufschlagt ist, in dessen Inneren eine Umwälzpumpe angeord¬ net ist, durch welche CO -Gas aus dem Kopfbereich des Vor-The present invention relates to a device for enriching water with CO gas for producing carbonized water in a storage container, which is cooled with cooling lines of a cooling circuit in the reservoir for cooling its content and for forming an ice jacket in the wall area A circulating pump is arranged inside, through which CO gas from the head region of the pre-

2 ratsbehälters in das Wasser eingemischt und/oder das Wasser innerhalb des Vorratsbeh lters in Rotation und/oder Zirkula¬ tion versetzt wird, und in den sowohl Wasser als auch2 storage container mixed into the water and / or the water inside the storage container is set in rotation and / or circulation, and in which both water and

CO -Gas im Kopfbereich zuführbar und aus dem karbonisiertesCO gas can be supplied in the head area and from the carbonized

2 Wasser im Bodenbereich entnehmbar ist.2 Water in the floor area is removable.

Derartige Vorrichtungen zum Anreichern von Wasser mitSuch devices for enriching water with

CO -Gas zur Erzeugung von karbonisiertem Wasser werden bei-CO gases for the production of carbonated water are

2 spielsweise in Geräten zum Einsatz gebracht, durch welche2 used for example in devices by which

CO -haltige Erfrischungsgetränke durch Mischung von karboni-CO-containing soft drinks by mixing carbonated

2 siertem Wasser mit einem entsprechenden Getränkekonzentrat bereitet und ausgegeben werden können. Das dem Getränkekon- zentrat zuzumischende Sodawasser wird dabei in dem Vorrats¬ behälter durch Anreicherung von Wasser mit zugeführtem2 prepared water can be prepared and dispensed with an appropriate beverage concentrate. The beverage con Soda water to be admixed is fed into the storage container by enriching it with water

CO -Gas erstellt und zur besseren Karbonisierung sowie alsCO gas created and for better carbonization as well as

2 Voraussetzung für ein bereitetes kühles Erfrischungsgetränk gekühlt. Diesem Vorratsbehälter, dem sogenannten Karbonisa¬ tor, wird normales Wasser in Trinkqualität entweder aus der Leitung eines Wasserversorgungssystems oder einem Vorratsbe¬ hälter unter ausreichendem Druck zugeführt, wobei das zuge¬ führte Wasser selbst unter Druck stehen kann oder aber durch eine Druckpumpe ausschließlich oder zusätzlich in den Karbo¬ nisator gefördert wird. Außerdem wird dem Karbonisator2 Precondition for a prepared cool soft drink chilled. Normal water in drinking quality is fed to this storage container, the so-called carbonator, either from the line of a water supply system or from a storage container under sufficient pressure, the supplied water itself being able to be under pressure or else exclusively or additionally by a pressure pump the carbonator is promoted. It also becomes the carbonizer

CO -Gas zugeführt, und zwar aus einem CO -Gas-Vorratsbehäl-CO gas supplied, namely from a CO gas storage container

2 2 ter über ein Druckminder-Regelventil, so daß im Karbonisator ein Druck von beispielsweise ca. 4 Bar aufgebaut ist. Durch verschiedene Maßnahmen wird die Karbonisierung des Wassers im Karbonisator mit dem zugeführten CO -Gas durchgeführt bzw. unterstützt, wobei sich der Einsatz von im Karbonisator angeordneten Umwälzpumpen bewährt hat. Diese saugen aus dem mit CO -Gas gefüllten Kopfbereich des Karbonisators dieses2 2 ter via a pressure reducing valve, so that a pressure of approx. 4 bar is built up in the carbonator. The carbonation of the water in the carbonator is carried out or supported with the supplied CO gas by various measures, the use of circulation pumps arranged in the carbonator having proven successful. These suck from the head area of the carbonator filled with CO gas

2 CO -Gas an und führen dieses in das in Bewegung, insbesonde-2 CO gas and lead it into motion, especially

2 re in Drehung versetzte Wasser ein. Wie bereits ausgeführt, dient eine Kühlung des Karbonisators zum einen der Verbesse¬ rung der Karbonisierung und zum anderen als Voraussetzung, daß das endgültig bereitete und ausgegebene Getränk die ge¬ wünschte niedrige und im wesentlichen konstante Temperatur aufweist. Die Kühlung des Karbonisators erfolgt zweckmäßig über ein Kühlsystem, das in der Lage ist, im Seitenbereich der Seitenwandungen des Karbonisators einen Eismantel aufzu¬ bauen, welcher sich durch das umgewälzte Wasser einigermaßen gleich stark ausbildet. Dadurch wird "Kaltekapazit t" ge¬ speichert und das Kühlsystem braucht nicht extrem leistungs¬ stark ausgelegt werden, wie dies bei Durchflußkühlung not- wendig wäre. Anordnungen mit einem entsprechenden Aufbau sind bekannt (DE-A-40 25 986.2).2 re rotating water. As already stated, cooling the carbonator serves on the one hand to improve the carbonation and on the other hand as a prerequisite that the final prepared and dispensed beverage has the desired low and essentially constant temperature. The carbonator is expediently cooled by means of a cooling system which is able to build up an ice jacket in the side region of the side walls of the carbonator, which ice jacket is formed to a certain extent by the circulated water. As a result, "cold capacity" is stored and the cooling system need not be designed to be extremely powerful, as is necessary in the case of flow cooling. would be agile. Arrangements with a corresponding structure are known (DE-A-40 25 986.2).

Wird beispielsweise im beschriebenen Anwendungsfall die Aus¬ gabe eines frisch bereiteten Erfrischungsgetränks gewünscht, so wird in einer an den Bodenbereich des Karbonisators an¬ schließenden Leitung ein Absperrventil geöffnet und das ge¬ kühlte, karbonisierte Wasser zu diesem Zweck entnommen. Da das Wasser von im Hinblick auf den sich ausbildenden Eisman¬ tel im Bereich der Kühlschlangen in die Nähe des Gefrier¬ punktes gekühlt ist, besteht eine gewisse Gefahr, daß Eis¬ teilchen oder -teile in den Bereich der Ausflußöffnung ge¬ langen und diese verstopfen. Eine Eisbildung in diesem Be¬ reich selbst ist eher ausgeschlossen, da wegen des besonde¬ ren Verhaltens des Wassers bezüglich seiner spezifischen Dichte in der Nähe des Gefrierpunktes das etwas wärmere Was¬ ser nach unten absinken würde, und da die AuslaufÖffnung zweckmäßigerweise im Nahbereich der an sich etwas Wärme aus¬ strahlenden Umwälzpumpe angeordnet ist. Durch die Umwälzbe¬ wegung des Wassers, die zum Karbonisieren und zum gleichmä¬ ßigen Ausbilden des Eismantels an den Wandungen notwendig oder zumindest zweckdienlich ist, kann jedoch sich ablösen¬ des Eis oder aber in den oberen Bereichen schwimmendes oder schwebendes Eis bei insbesondere geöffnetem Ausgabekanal in dessen Bereich gelangen.If, for example, in the described application, the delivery of a freshly prepared soft drink is desired, a shut-off valve is opened in a line connected to the bottom area of the carbonator and the cooled, carbonated water is removed for this purpose. Since the water is cooled in the area of the cooling coils in the vicinity of the freezing point with regard to the ice coat being formed, there is a certain risk that ice particles or parts will get into the area of the outflow opening and block it . Ice formation in this area itself is rather impossible, since because of the special behavior of the water with regard to its specific density in the vicinity of the freezing point, the somewhat warmer water would sink downward, and since the outlet opening is expediently in the vicinity of the an Circulating pump radiating some heat is arranged. Due to the circulating movement of the water, which is necessary or at least useful for the carbonization and for the uniform formation of the ice jacket on the walls, however, the ice can become detached or floating or floating ice in the upper areas with a particularly open discharge channel in reach its area.

Es nunmehr Aufgabe der vorliegenden Erfindung, eine Vorrich¬ tung für diesen Anwendungsbereich zu schaffen, welche ein störungsfreies Arbeiten des Karbonisators sicherstellt.It is an object of the present invention to provide a device for this area of application which ensures trouble-free operation of the carbonator.

Eine Vorrichtung, die diesen Anforderungen gerecht wird, ist dadurch gekennzeichnet, daß die Umwälzpumpe innerhalb des Vorratsbehalters, der zur Erzeugung von karbonisiertem Was¬ ser durch Anreicherung von Wasser mit CO -Gas dient, durchA device that meets these requirements is characterized in that the circulation pump within the Storage container, which is used to produce carbonized water by enriching water with CO gas

2 eine Zeitsteuerschaltung gesteuert, in fortlaufenden Zyklen in Betrieb und außer Betrieb gesetzt wird.2 controls a timing circuit, is started and stopped in continuous cycles.

Eine Vorrichtung mit Maßnahmen nach diesen erfindungsgemäßen Merkmalen zeichnet sich dadurch aus, daß in den Betriebspha¬ sen der Umwälzpumpe die ausreichende Karbonisierung des Was¬ sers mit CO -Gas bewerkstelligt und/oder unterstützt wirdA device with measures according to these features according to the invention is characterized in that the sufficient carbonation of the water with CO gas is accomplished and / or supported in the operating phases of the circulating pump

2 und sich der Eismantel im wesentlichen gleichartig ringför¬ mig an der gekühlten Wandung des Vorratsbehalters ausbildet. Während der dazwischenliegenden Zeiträume, in denen die Um¬ wälzpumpe außer Betrieb gesetzt ist, kann sich das karboni¬ sierte Wasser seiner natürlichen Dichte nach schichten, wo¬ bei das etwas wärmere Wasser nach unten sinkt und das etwas kältere Wasser zusammen mit ggf. vorhandenen Eispartikeln oder Eisteilchen nach oben steigt, wobei sich die Eisparti¬ kel und Eisteilchen eher zusammenfügen und sich an den Eis¬ mantel im oberen Bereich des Karbonisators anlegen. Beim nächsten Betriebszyklus der Umwälzpumpe sind diese Teilchen somit gebunden und im weitestgehenden Maße unschädlich. Die Taktung der Umwälzpumpe kann durch eine steuertechnisch ein¬ fach funktionierende Zeitsteuerschaltung durchgeführt wer¬ den.2 and the ice jacket is formed essentially in a ring-like manner on the cooled wall of the storage container. During the intervening periods in which the circulation pump is out of operation, the carbonized water can stratify according to its natural density, whereby the somewhat warmer water sinks down and the somewhat colder water together with any ice particles that may be present or ice particles rise to the top, the ice particles and ice particles tending to come together and lie against the ice jacket in the upper region of the carbonator. During the next cycle of operation of the circulation pump, these particles are bound and largely harmless. The clocking of the circulating pump can be carried out by a timing control circuit that functions simply in terms of control technology.

Nach einer bevorzugten Ausgestaltung ist die erfindungsgemä¬ ße Vorrichtung dadurch gekennzeichnet, daß die Einschaltdau¬ er der Umwälzpumpe ca. 1 bis 2 min beträgt und das Verhält¬ nis von Einschaltdauer zur Ausschaltdauer ca. 1:10 bis 1:20 ist. Es zeigt sich, daß eine Einschaltdauer von einer bis zwei Minuten innerhalb von Einschalt-Ausschalt-Zyklen von 1:10 bis 1:20 eine genügende Nachkarbonisierung des Wassers und eine genügend gleichmäßige Eismantelausgestaltung zu be¬ werkstelligen in der Lage ist. Nach einer weiteren Ausge¬ staltung ist die erfindungsgemäße Vorrichtung dadurch ge¬ kennzeichnet, daß bei Entnahme von karbonisiertem Wasser aus dem Vorratsbehälter bzw. bei Nachförderung von Frischwasser in den Vorratsbehälter die Umwälzpumpe während dieser Phase einschließlich einer Nachlaufphase in Betrieb gesetzt ist. Dabei ist eine Nachlaufphase von ca. 2 bis 4 Minuten zweck¬ mäßig. Danach setzt wieder der Regelzyklus ein, bei dem die Umwälzpume 1 bis 2 Minuten eingeschaltet ist und die Aus¬ schaltdauer zwischen den Einschaltphasen jeweils 10 bis 20 mal so lang ist.According to a preferred embodiment, the device according to the invention is characterized in that the on-time of the circulation pump is approximately 1 to 2 minutes and the ratio of the on-time to the off-time is approximately 1:10 to 1:20. It turns out that an on-time of one to two minutes within on-off cycles from 1:10 to 1:20 is sufficient re-carbonation of the water and is able to achieve a sufficiently uniform ice jacket design. According to a further embodiment, the device according to the invention is characterized in that when carbonized water is removed from the storage container or when fresh water is supplied to the storage container, the circulation pump is put into operation during this phase including a follow-up phase. A follow-up phase of approximately 2 to 4 minutes is expedient. Then the control cycle starts again, in which the circulation pump is switched on for 1 to 2 minutes and the switch-off time between the switch-on phases is 10 to 20 times as long.

Die Erfindung wird anhand von in der Zeichnung dargestellten Anwendungsbeispielen im folgenden näher erläutert. Es zei¬ gen:The invention is explained in more detail below with reference to application examples shown in the drawing. It shows:

Fig. 1 einen gekühlten Vorratsbehälter zur Bereitung und zur Bereithaltung von karbonisiertem Wasser mit einer Umwälzpumpe undFig. 1 shows a cooled storage container for the preparation and for the preparation of carbonated water with a circulation pump and

Fig. 2 einen ähnlichen Vorratsbehälter, jedoch zusätz¬ lich mit Kühlschlangen innerhalb dieses Vorrats- behälters und an diesem Vorratsbehälter zum Küh¬ len eines weiteren Mediums.2 shows a similar storage container, but additionally with cooling coils inside this storage container and on this storage container for cooling another medium.

Ein Vorratsbehälter 1, wie er in den Figuren dargestellt ist, ist für den Einsatz in Geräten zur Bereitung von Erfri¬ schungsgetränken durch Zumischung eines entsprechenden Kon¬ zentrats zu karbonisiertem Wasser oder ggf. auch zu normalem Wasser geeignet und bestimmt. Über eine Zuleitung 2 wird dem Vorratsbehälter bei BedarfA storage container 1, as shown in the figures, is suitable and intended for use in devices for the preparation of soft drinks by admixing an appropriate concentrate to carbonated water or possibly also to normal water. Via a feed line 2, the storage container is required

Frischwasser und über eine Zuleitung 3 CO -Gas zugeführt.Fresh water and 3 CO gas supplied via a feed line.

2 Über eine Ausgangsleitung 4 wird zum Bereiten eines Erfri¬ schungsgetränks ausreichend karbonisiertes und gekühltes Wasser portionsweise entnommen. Die ausreichende Karbonisie¬ rung erfolgt zumindest unterstützt durch eine Umwälzpumpe 5, welche aus dem Kopfbereich 6 des Vorratsbehalters 1 das sich dort befindliche CO -Gas über ein Ansaugrohr 7 ansaugt und in Höhe der Umwälzpumpe 5 in das bevorratete Wasser 8 einmischt. Dabei wird dieses CO -Gas weitestgehend im Wasser2 A sufficient amount of carbonated and cooled water is taken in portions via an outlet line 4 to prepare a refreshing drink. The sufficient Karbonisie¬ tion is at least supported by a circulation pump 5, which sucks the CO gas located there from the head region 6 of the storage container 1 via an intake pipe 7 and mixes it into the stored water 8 at the level of the circulation pump 5. This CO gas is largely in the water

2 8 gelöst. Die Umwälzpumpe 5 wird durch einen Elektromotor 9 angetrieben.2 8 solved. The circulation pump 5 is driven by an electric motor 9.

Die Kühlung des Wasservorrats erfolgt über Verdampferschlan¬ gen 10 eines nicht dargestellten Kühlsystems, und zwar der¬ art, daß im Inneren des Vorratsbehalters 1 im Bereich der Verdampferschlangen 10, die gut thermisch leitend an der Wandung des Vorratsbehalters 1 anliegen, sich ein Eismantel 11 aufbaut. Die Stärke dieses Eismantels 11 wird durch einen Eissensor 12 überwacht, von dem aus der Kältekreislauf und damit die Kälteleistung gesteuert wird.The cooling of the water supply takes place via evaporator coils 10 of a cooling system, not shown, in such a way that an ice jacket 11 builds up in the interior of the storage container 1 in the area of the evaporator coils 10, which rest on the wall of the storage container 1 with good thermal conductivity . The thickness of this ice jacket 11 is monitored by an ice sensor 12, from which the refrigeration cycle and thus the cooling capacity is controlled.

Die Ausbildung dieses Eismantels 11 bewirkt, daß ohne sehr feinfühlige Erfassungs- und Auswertemaßnahmen der Vorrat des Wassers 8 auf eine sehr konstante Temperatur im unmittelba¬ ren Bereich des Gefrierpunkts gekühlt wird, und zwar wird auch die Temperatur im wesentlichen gehalten, wenn Wasser¬ wechsel stattfindet, d.h. wenn karbonisiertes Wasser über die Ausgangsleitung 4 entnommen wird und dafür - gesteuert durch einen Wasserstandssensor 13 - wärmeres Wasser über die Zuführungsleitung 3 zugeführt wird. In diesem Fall baut sich der Eismantel relativ rasch um Teilbereiche ab, die dann wieder durch über die Verdampferleitungen 10 zugeführte Kühlleistung aufgebaut werden.The formation of this ice jacket 11 has the effect that the reservoir of water 8 is cooled to a very constant temperature in the immediate area of the freezing point without very sensitive detection and evaluation measures, and the temperature is essentially maintained when water changes take place , ie when carbonized water is withdrawn via the outlet line 4 and - controlled by a water level sensor 13 - warmer water is supplied via the inlet line 3. In this case, the ice jacket degrades relatively quickly around sub-areas, which then be built up again by cooling power supplied via the evaporator lines 10.

Die Tatsache, daß das bevorratete Wasser 8, aber auch der Eismantel 11 im Grenzbereich zum Wasser eine Temperatur im Gefrierbereich annehmen, führt dazu, daß auch frei im Was¬ ser schwimmende oder schwebende Eispartikel oder Eisteilchen auftreten können, die durch die Tätigkeit der Umwälzpumpe beim Karbonisieren des Wassers mit umgewälzt werden. Wenn die Ausgangsleitung 4 geöffnet wird, kann durch das aus dem Vorratsbehälter unter dem Druck des CO -Gases im Kopfbereich 6 ausströmenden Wassers derartige Eisteilchen in die Aus¬ lauföffnung geraten. Dadurch würde der Ausgabeprozeß des Wassers über die Ausgangs eitung 4 gestört oder blockiert. Die Bereitung eines ordnungsgemäßen Erfischungsgetränks wäre damit nicht möglich.The fact that the stored water 8, but also the ice jacket 11 in the border area to the water, assume a temperature in the freezer area, means that free floating or floating ice particles or ice particles can also occur in the water, which are caused by the activity of the circulation pump when Carbonize the water to be circulated. When the outlet line 4 is opened, such ice particles can get into the outlet opening due to the water flowing out of the storage container under the pressure of the CO gas in the head region 6. This would disrupt or block the output process of the water via the output line 4. It would not be possible to prepare a proper soft drink.

Um das zu verhindern, ist man bestrebt, diesen Problembe¬ reich eisfrei zu halten. Eine bekannte Maßnahme besteht da¬ rin, die Vereisung der Ausgangsöffnung dadurch zu verhin¬ dern, daß diese im Nahbereich und/oder unterhalb der Umwälz¬ pumpe angeordnet wird, wobei sich die Erwärmung insbesondere des Antriebsmotors 9 als Hilfe gegen ein Vereisen positiv auswirkt. Diese Maßnahme kann aber gegen Eis-Schwebeteilchen nicht ausreichend sein. Aus diesem Grunde wird der Elektro¬ motor 9 intermittierend angesteuert. Einer Betriebsphase von ca. 1 bis 2 min folgt eine Ruhephase von ca. der 10-fachen bis 20-fachen Länge. In dieser Ruhephase beruhigt sich das umgewälzte Wasser 8 und in diesem Wasser schwebende Eispar¬ tikel und Eisteilchen sind aufgrund ihrer niedrigeren Dichte bestrebt, in den Bereich der Oberfläche des Wassers zu ge¬ langen, um sich dort zu vereinigen und/oder in den Randbe- reichen am Eismantel 10 anzulegen. Bei einer neuerlichen Ar¬ beitsphase der Umwälzpumpe 5 sind diese Gefahrenelemente so¬ mit neutralisiert.In order to prevent this, efforts are being made to keep this problem area ice-free. A known measure consists in preventing icing of the outlet opening by arranging it in the vicinity and / or below the circulating pump, the heating, in particular of the drive motor 9, having a positive effect against icing. However, this measure may not be sufficient against floating ice particles. For this reason, the electric motor 9 is driven intermittently. An operating phase of approx. 1 to 2 minutes is followed by a rest phase of approx. 10 to 20 times the length. In this resting phase, the circulated water 8 calms down and ice particles and ice particles floating in this water, because of their lower density, endeavor to reach the area of the surface of the water in order to unite there and / or in the edge areas. are enough to put on the ice jacket 10. In a new working phase of the circulation pump 5, these hazard elements are thus neutralized.

Um bei Wasserwechsel, d.h. bei entnommenem karbonisiertem Wasser und zugeführtem Frischwa≤ser den Wasservorrat mög¬ lichst rasch auf den erforderlichen Karbonisierungsgrad zu bringen, wird bei jeder Entnahme von karbonisiertem Wasser bzw. Zugabe von Frischwasser der Elektromotor 9 angesteuert und die Umwälzpumpe 5 für diese Zeitspannen einschließlich einer Nachlaufzeit außerturnusmäßig in Betrieb gesetzt, wo¬ nach der Einschalte-Ausschalte-Turnus wieder wie ursprüng¬ lich einsetzt.In order to change water, i.e. When the carbonated water is removed and the fresh water supplied, the water supply is brought to the required degree of carbonation as quickly as possible, the electric motor 9 is actuated each time carbonated water is added or fresh water is added, and the circulation pump 5 is rotated for these periods including a follow-up time Operation set, after which the switch-on-switch-off cycle starts again as originally.

Die schaltungstechnischen Maßnahmen sind beliebig einfach und können beispielsweise dadurch realisiert sein, daß vom Wasserstandssensor 13 ein Signal abgeleitet wird, das eine Zählkette in eine Ausgangssituation während eines Wasserzu¬ laufs gesetzt wird, die bewirkt, daß der Stromversorgungs¬ schalter 15 zum Elektromotor 9 geschlossen wird. Erkennt der Wasserstandssensor 13, daß genügend Wasser nachgefüllt ist, so wird der Wasserzulauf über die Zuleitung 2 gesperrt und die Zählkette 14 beginnt abzulaufen. Für einen zeitlichen Bereich von 1 bis 2 min, je nach Auslegung der Zählkette, bleibt der Schalter 15 geschlossen, um danach geöffnet zu werden, bis die Zählkette den oberen Einstellwert erreicht hat, wonach sie wieder zur Ausgangssituation zurückgeschal¬ tet werden kann und neu durchläuft.The circuitry measures are arbitrarily simple and can be implemented, for example, in that a signal is derived from the water level sensor 13, which sets a counting chain into an initial situation during a water inflow, which causes the power supply switch 15 to the electric motor 9 to be closed . If the water level sensor 13 detects that enough water has been refilled, the water supply via the feed line 2 is blocked and the counting chain 14 begins to run off. For a time range of 1 to 2 minutes, depending on the design of the counting chain, the switch 15 remains closed, in order to be opened thereafter until the counting chain has reached the upper setting value, after which it can be switched back to the initial situation and run through again .

Die Fig. 2 zeigt eine Modifikation eines Vorratsbehalters gemäß Fig. 1, wobei der Vorratsbehälter ll nur im oberen Wandungsbereich mit Verdampferschlangen 10' beaufschlagt ist, damit sich der Eispanzer, auch bevorzugt im oberen Be¬ reich des Vorratsbehalters 1' ausbildet. Um die Umwälzpumpe 5' und dessen Antriebsmotor 9' verlaufen Rohrschlangen 16, durch die durch das karbonisierte Wasser zu kühlendes, son¬ stiges Wasser geleitet wird. Durch die Ruhephasen der Um¬ wälzpumpe sammelt sich das wegen seiner größeren Dichte et¬ was wärmere Wasser 8' in den unteren Zonen des Vorratsbehal¬ ters 1' an, so daß auch einer Vereisungsgefahr in den Rohr¬ schlangen 16 vorgebeugt ist. Fig. 2 shows a modification of a Vorratsbehalters according to Fig. 1, wherein the reservoir l l only in the upper wall region with evaporator coils 10 'acted is so that the ice sheet is also preferably formed in the upper region of the storage container 1 '. Around the circulation pump 5 'and its drive motor 9' there are coils 16 through which other water to be cooled is passed through the carbonized water. Due to the resting phases of the circulation pump, the slightly warmer water 8 'due to its greater density collects in the lower zones of the storage container 1', so that a risk of icing in the coils 16 is also prevented.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS 1. Vorrichtung zum Anreichern von Wasser mit CO -Gas zur Er¬ zeugung von karbonisiertem Wasser in einem Vorratsbehäl¬ ter, welcher zur Kühlung seines Inhalts und zur Bildung eines Eismantels im Wandungsbereich mit Kühlleitungen ei¬ nes Kühlkreislaufes beaufschlagt ist, in dessen Inneren eine Umwälzpumpe angeordnet ist, durch welche CO -Gas aus1. Device for enriching water with CO gas for generating carbonized water in a storage container, which is cooled with cooling lines of a cooling circuit to cool its contents and to form an ice jacket in the wall area, in the interior of which a circulation pump is arranged, through which CO gas 2 dem Kopfbereich des Vorratsbehalters in das Wasser einge¬ mischt und/oder das Wasser innerhalb des Vorratsbehalters in Rotation versetzt wird, und in den sowohl Wasser als auch CO -Gas im Kopfbereich zugeführt und aus dem karboni-2 is mixed into the water in the head region of the storage container and / or the water is set in rotation within the storage container, and into which both water and CO gas are supplied in the head region and from the carbon 2 siertes Wasser im Bodenbereich entnehmbar ist, d a ¬ d u r c h g e k e n n z e i c h n e t , daß die Umwälz¬ pumpe durch eine Zeitsteuerschaltung gesteuert in fortlau¬ fenden Zyklen in Betrieb und außer Betrieb gesetzt wird.2 water can be taken off in the floor area, so that the circulating pump is put into operation and taken out of operation in a continuous cycle, controlled by a time control circuit. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einschaltdauer der Umwälzpumpe ca. 1 bis 2 min beträgt und das Verhältnis von Einschaltdauer zur Ausschaltdauer ca. 1:10 bis 1:20 ist.2. Device according to claim 1, characterized in that the duty cycle of the circulating pump is approximately 1 to 2 minutes and the ratio of the duty cycle to the switch-off duration is approximately 1:10 to 1:20. I. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch ge¬ kennzeichnet, daß bei Entnahme von karbonisiertem Wasser aus dem Vorratsbehälter bzw. bei Nachförderung von Frisch¬ wasser in den Vorratsbehälter die Umwälzpumpe während die¬ ser Phase einschließlich einer Nachlaufphase in Betrieb gesetzt ist.I. Device according to one of claims 1 or 2, characterized ge indicates that when carbonated water is removed from the storage container or when fresh water is supplied to the storage container, the circulation pump is put into operation during this phase, including a follow-up phase . _. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß diese Nachlaufphase ca. 2 bis 4 min beträgt. _. Device according to claim 3, characterized in that this follow-up phase is approximately 2 to 4 minutes.
EP93919164A 1992-08-28 1993-08-25 Device for enriching water with co 2? gas in order to generate carbonated water and use of the device Expired - Lifetime EP0610483B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4228771A DE4228771A1 (en) 1992-08-28 1992-08-28 Device for enriching water with CO¶2¶ gas to produce carbonated water
DE4228771 1992-08-28
PCT/EP1993/002282 WO1994005409A1 (en) 1992-08-28 1993-08-25 Device for enriching water with co2 gas in order to generate carbonated water

Publications (2)

Publication Number Publication Date
EP0610483A1 true EP0610483A1 (en) 1994-08-17
EP0610483B1 EP0610483B1 (en) 1996-05-15

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US (1) US5443763A (en)
EP (1) EP0610483B1 (en)
JP (1) JP3187053B2 (en)
AT (1) ATE137991T1 (en)
AU (1) AU4952993A (en)
CA (1) CA2122053C (en)
DE (2) DE4228771A1 (en)
DK (1) DK0610483T3 (en)
WO (1) WO1994005409A1 (en)
ZA (1) ZA936289B (en)

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Also Published As

Publication number Publication date
AU4952993A (en) 1994-03-29
CA2122053C (en) 1997-01-07
ATE137991T1 (en) 1996-06-15
JPH07503183A (en) 1995-04-06
DE4228771A1 (en) 1994-03-03
CA2122053A1 (en) 1994-03-17
JP3187053B2 (en) 2001-07-11
DK0610483T3 (en) 1996-10-07
ZA936289B (en) 1994-04-05
US5443763A (en) 1995-08-22
DE59302605D1 (en) 1996-06-20
EP0610483B1 (en) 1996-05-15
WO1994005409A1 (en) 1994-03-17

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